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�������պ����ѧѧ�� 2007, Vol. 33 Issue (10) :1146-1149    DOI:
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Static aeroelastic divergence analysis by introducing correction techniques of aerodynamic data
Yan De, Yang Chao, Wan Zhiqiang*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� The correction techniques of aerodynamic forces were introduced in the computation and analysis of static aeroelastic divergence. According to steady pressure distribution data on a three dimensional wing, the correction factors to pressure and downwash were obtained and the steady aerodynamic influence matrix based on planar double lattice method was corrected. The divergence speed of the wing was calculated using the mode method. The results show the divergence speeds of the wing after pressure correction and downwash correction are both lower than that before, due to the aerodynamic center of steady pressure distribution on the three dimensional being closer to the leading edge than that of planar double lattice method.
Keywords�� static aeroelasticity   divergence   pressure correction   downwash correction   aerodynamic influence matrix     
Received 2007-01-12;
Fund:

������Ȼ��ѧ����������Ŀ(10432040, 10502003);�����������˲żƻ�������Ŀ(NCET-04-0170)

About author: �� �� (1979��),��,�Ĵ��Ͻ���,��ʿ��,horseyd@sohu.com.
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�ϵ�,�,��־ǿ.Ӧ�����������������ľ����� ���Է�ɢ����[J]  �������պ����ѧѧ��, 2007,V33(10): 1146-1149
Yan De, Yang Chao, Wan Zhiqiang.Static aeroelastic divergence analysis by introducing correction techniques of aerodynamic data[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(10): 1146-1149
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2007/V33/I10/1146
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